mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 09:48:16 +00:00
c837dcb1a3
before we can access it; add delay in case we are faster (with no CF card inserted) * Cleanup of some init functions * Make sure SCC Ethernet is always stopped by the time we boot Linux to avoid Linux crashes by early packets coming in. * Accelerate flash accesses on LWMON board by using buffered writes
94 lines
2 KiB
Text
94 lines
2 KiB
Text
(cpu/mpc7xxx/start.S)
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start:
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b boot_cold
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start_warm:
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b boot_warm
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boot_cold:
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boot_warm:
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clear bats
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init l2 (if enabled)
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init altivec (if enabled)
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invalidate l2 (if enabled)
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setup bats (from defines in config_EVB)
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enable_addr_trans: (if MMU enabled)
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enable MSR_IR and MSR_DR
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jump to in_flash
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in_flash:
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enable l1 dcache
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gal_low_init: (board/evb64260/sdram_init.S)
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config SDRAM (CFG, TIMING, DECODE)
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init scratch regs (810 + 814)
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detect DIMM0 (bank 0 only)
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config SDRAM_PARA0 to 256/512Mbit
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bl sdram_op_mode
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detect bank0 width
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write scratch reg 810
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config SDRAM_PARA0 with results
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config SDRAM_PARA1 with results
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detect DIMM1 (bank 2 only)
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config SDRAM_PARA2 to 256/512Mbit
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detect bank2 width
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write scratch reg 814
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config SDRAM_PARA2 with results
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config SDRAM_PARA3 with results
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setup device bus timings/width
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setup boot device timings/width
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setup CPU_CONF (0x0)
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setup cpu master control register 0x160
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setup PCI0 TIMEOUT
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setup PCI1 TIMEOUT
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setup PCI0 BAR
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setup PCI1 BAR
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setup MPP control 0-3
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setup GPP level control
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setup Serial ports multiplex
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setup stack pointer (r1)
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setup GOT
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call cpu_init_f
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debug leds
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board_init_f: (common/board.c)
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board_early_init_f:
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remap gt regs?
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map PCI mem/io
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map device space
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clear out interupts
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init_timebase
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env_init
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serial_init
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console_init_f
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display_options
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initdram: (board/evb64260/evb64260.c)
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detect memory
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for each bank:
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dram_size()
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setup PCI slave memory mappings
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setup SCS
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setup monitor
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alloc board info struct
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init bd struct
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relocate_code: (cpu/mpc7xxx/start.S)
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copy,got,clearbss
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board_init_r(bd, dest_addr) (common/board.c)
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setup bd function pointers
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trap_init
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flash_init: (board/evb64260/flash.c)
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setup bd flash info
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cpu_init_r: (cpu/mpc7xxx/cpu_init.c)
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nothing
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mem_malloc_init
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malloc_bin_reloc
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spi_init (r or f)??? (CFG_ENV_IS_IN_EEPROM)
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env_relocated
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misc_init_r(bd): (board/evb64260/evb64260.c)
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mpsc_init2
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